Absolutely : Absolutely possible. There are many goo websites thy explain the genetics of blood types. I've listed on below. The chance of two blood type b parents having a an o child is 6.25% overall, but goes up to 25% if both parents are known to be type bo and not bb. Since it is possible for this to occurr the only way to determine paternity would be a dna or to determine tht the presumed father is blood type bb and not bo. I don't mean to b too presumptuous, but if you are asking this question about your own child, it sounds like there are some trust issues in your relationship that might need to be addressed before or if they become a major problem.
Answered 10/3/2016
5.3k views
Yes: When each parent is B, their biologic children can be B or O.
Answered 12/20/2019
116 views
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